1. Quantitative anatomical analysis of lumbar interspaces based on 3D CT imaging: optimized segment selection for lumbar puncture in different age groups.
- Author
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Zhuang, Yuan-Dong, Hu, Xiao-Cong, Dai, Ke-Xin, Ye, Jun, Zhang, Chen-Hui, Zhuo, Wen-Xuan, Wu, Jian-Feng, Liu, Shi-Chao, Liang, Ze-Yan, and Chen, Chun-Mei
- Subjects
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STATISTICS , *COMPUTER simulation , *THREE-dimensional imaging , *LUMBOSACRAL plexus , *AGE distribution , *QUANTITATIVE research , *COMPARATIVE studies , *LUMBAR puncture , *RESEARCH funding , *COMPUTED tomography , *LUMBAR vertebrae , *DATA analysis , *PATIENT safety - Abstract
Background: Optimal lumbar puncture segment selection remains controversial. This study aims to analyze anatomical differences among L3-4, L4-5, and L5-S1 segments across age groups and provide quantitative evidence for optimized selection. Methods: 80 cases of CT images were collected with patients aged 10–80 years old. Threedimensional models containing L3-S1 vertebrae, dural sac, and nerve roots were reconstructed. Computer simulation determined the optimal puncture angles for the L3-4, L4-5, and L5-S1 segments. The effective dural sac area (ALDS), traversing nerve root area (ATNR), and area of the lumbar inter-laminar space (ALILS) were measured. Puncture efficacy ratio (ALDS/ALILS) and nerve injury risk ratio (ATNR/ALILS) were calculated. Cases were divided into four groups: A (10–20 years), B (21–40 years), C (41–60 years), and D (61–80 years). Statistical analysis was performed using SPSS. Results: 1) ALDS was similar among segments; 2) ATNR was greatest at L5-S1; 3) ALILS was greatest at L5-S1; 4) Puncture efficacy ratio was highest at L3-4 and lowest at L5-S1; 5) Nerve injury risk was highest at L5-S1. In group D, L5-S1 ALDS was larger than L3-4 and L4-5. ALDS decreased after age 40. Age variations were minimal across parameters. Conclusion: The comprehensive analysis demonstrated L3-4 as the optimal first-choice segment for ages 10–60 years, conferring maximal efficacy and safety. L5-S1 can serve as an alternative option for ages 61–80 years when upper interspaces narrow. This study provides quantitative imaging evidence supporting age-specific, optimized lumbar puncture segment selection. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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